Dan,
Know how you feel. I have done that a couple times. I hate catching the heel edge. Jacked up my neck/upper back a couple times. My left arm was on fire from the last one (kind of like hitting your funny bone, but this was my entire arm.) Still have a small part of the tip of one finger that has no feeling. That was from 3 months ago. I would rather take a faceplant. At least I don't get whiplash from those. Well, I guess that is how I tore my abs though. Maybe I should just quit falling!